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Патент USA US3022556

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Feb- 27, 1962
Filed June 12, 1959
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I. 4, _, , ,=6”
FIG. 5
FIG. 2
United States Patent @?hce
William M. Nevotti, 3519 Hawthorne Ave., Omaha, Nebr.
Filed June 12, 1959, Ser. No. 819,842
1 Claim. (Cl. 20-522)
This invention relates to windows of the double hung
or sliding sash type, and particularly windows wherein
weights and other balancing elements are eliminated, and
in particular a window having sash with longitudinally
disposed undulating strips on opposite edges thereof
wherein the undulating strips are positioned to coact with
complementary spring actuated longitudinally disposed
strips in the sides of a window frame, whereby the sash
are readily adjusted vertically in the window frame and
wherein the sash are readily removable to facilitate clean
ing and repairing, and also readily replaceable.
The purpose of this invention is to provide a window
of the double hung type in which weights and other bal
Patented Feb. 27, 1962
elements in which the window is of simple and economical
With these and other objects and advantages in view
the invention embodies a window frame, sash slidably
mounted in the window frame and separated by parting
strips, undulating strips of material on the edges at the
sides of the sash, complementary undulating strips of
material in the sides of the window frame and positioned
to coact with the undulating strips on the sash, and
springs positioned behind the undulating strips of mate-'
rial in the window frame for urging the undulating strips
of the frame into engagement with the undulating strips
of the sash.
Other features and advantages of the invention will
appear from the following description taken in connec
tion with the drawings, wherein:
FIGURE 1 is a front elevational view of a window
frame having upper and lower sash therein and wherein
the sash are retained in adjusted positions by undulating
ancing elements are eliminated, in which the sash are 20 strips of material.
FIGURE 2 is a vertical section through the window
frame shown in FIGURE 1, with the parts shown on an
the sash are removable.
enlarged scale, parts being broken away.
Various attempts have been made to mount sash of
FIGURE 3 is a sectional plan through one side of the
windows of the double hung type so that the sash. are
window frame taken on line 3-3 of FIGURE 1, with
readily adjustable vertically and also readily removable,
the parts shown on an enlarged scale, and showing the
however, it is di?cult to make sash that are removable
readily moved upwardly and downwardly, and in which
so that the sash slide freely upwardly and downwardly
in the window frames.
With this thought in mind this invention contemplates
window sash having udulated elements at both sides and
wherein undulated elements in the window frames are
relative positions of the undulating strips of material be
tween the sash and window frame.
FIGURE 4 is a perspective view showing the mount
ing of the‘ undulating strips of material in the window
yielding or urged outwardly by springs so that high points
FIGURE 5 is a sectional plan through one of the un
of the undulations of the sash slide over high points of
the undulations of the window frame, and wherein high
points of the undulations of the sash nest in low por
dulating strips of material, with the parts shown on an
tions of the undulations of the window frame so that the
sash are secured in adjusted positions.
The object of this invention is, therefore, to provide
enlarged scale.
FIGURE 6 is a sectional plan through one of the side
rails of the sash with the parts shown on an enlarged
scale, and showing the recess for the undulating support;
and also a continuous groove for receiving ?anges of
the strip of the frame and channel bar.
means for installing undulating strips between sash and
While one embodiment of the invention is illustrated
frames of the windows so that the sash slide freely and 40
in the above referred to drawings, it is to be understood
are readily removable.
that they are merely for the purpose of illustration and
Another object of the invention is to provide means
that various changes in construction may be restored to
for mounting sash in window frames so that the windows
in the course of manufacture in order that the invention
are sealed against winter winds and the like.
may be utilized to the best advantage according to cir
More particularly it is an object of this invention to
cumstances which may arise, without in any way depart
provide a window having vertical undulating comple
ing from the spirit and intention of the device, which is
mentary surfaces disposed opposite each other and at
to be limited only in accordance with the appended
tached to the sash and window respectively, and particu
claims. And while there is stated the primary ?eld of
larly in which the said surfaces extend substantially the
50 utility of the invention it remains obvious that it may be
entire height of the window and window sash.
employed in any other capacity wherein it may be found
Another major objective of my invention is to provide
a window having a construction working in cooperation
In the accompanying drawings, and in the following
and in combination with this structure for completing the
speci?cation, the same reference characters are used to
wind barrier effect.
Still another objective is to provide a window as de 55 designate the same parts and elements throughout and in
which the numeral 10 refers, to the invention in its en
scribed in which the undulating surfaces are gradually
, tirety, numeral 12 an elongated undulating support posi
curved to such a point that they are best described as
tioned in a recess 14 in each side of a sash 16 and ex
wavy rather than “bumpy” whereby the waves themselves
tended continuously throughout the length of the sash,
permit the raising of the window with ease and without
the frustrating resistance of sharply curved or “bumpy” 60 numerals 13 and 2d undulating springs mounted on each
side of a. window frame 22, and numerals 24 and 26 un
dulating strips positioned against the springs and integral
Still another object is to provide in combination such
with channel bars between the undulating strips and part
features as make it possible for the window to be re
ing strips.
moved from the sash for cleaning.
The undulating supports 12, as shown in section in
A further object is to provide a window of this type
FiGURE 5, are provided with side walls 28 and 30, the
having springs on both sides for particular ease of re
outer edges of which are undulating, and the inner edges
of which are provided with ?anges 32 and 34 that nest in
A still further object is to provide a window of the
the recesses 14. The outer undulating surfaces of the
double hung type having undulating strips of yielding
supports 12 are positioned to coact with corresponding
material at the sides of the sash for securing the sash in 70 surfaces 36 and 38 of the strips 24 and 26, as shown in
adjusted positions without weights or other balancing
FIGURE 4, wherein upon upward or downward move
3,022, 5&6
meat. at a sash the high points of, the undulations of the
the sash are positively locked in adjusted positions and,
sash ride over high points of the undulations of the strips
at the same time either the upper or lower sash may be
of the frame thereby compressing the springs, and with
moved upwardly or downwardly with ease.
continued movement of the sash the high points of the
The arrangement of the undulating or wavy strips and
supportsthereof comerto rest in the low points of the UK supports also provides positive seals at the sides of the
strips of the frame, thereby completely sealing the sides
window, and, not having connections to sash weights or
of the frame, and ‘also permitting the sash to be‘readily re
other balancing means, the sash are readily removable.
From the foregoing speci?cation it will'becoroe ap
_ With the high points of the undulating supports of the
parent that the invention disclosed will adequately ac
sash nested in the low points of the undulating strips of the
complish the functions for which it has been designed and
window frame the sash is locked in position, and although
an economical manner and that its simplicity, accuracy
it may not be advisable to move a sash one inch only, it
' and ease of operation are such as to provide a relatively in
expensive device considering what it will accomplish and
would be possible to stop the sash every three inches with
the undulations‘ spaced at three inch intervals. Three
that it will ?nd an important place in the art to which it
inches is only suggested as an illustration, as the undula
tions or waves may be spaced any suitable dimension.
' appertains when once placed on the market.
it is thought that persons skilled in the art to which the
invention relates will be able to obtain a clear under
The undulating strips in’ the sides of the frame are’
formed, as shown in FIGURES 3 and 4, with undulating
standing of the invention after considering the description
in connection with the drawings. Therefore, a more
lengthy description is regarded as unnecessary.
Changes ,inshape, size and rearrangement of details
and parts such as come within the purview of the inven
tion claimed may be resorted to, in actual practice if de
plates 49 upon which the surfaces 36 and 38 are posi~
tioned, and the edges of the plates 40 meet with extended
undulating edges of side walls 42 and 44 which extend
from webs 46 and 48. The outer edge of the web 48 is
provided with a ?ange 59 to which is secured an L-shaped
brace. 52 having an arm 54 on the inner end, and the arm
is positioned to extend into a recess 56 in the inner surface
of a blind stop or bead 58. The web 46 is provided with
a ?ange 60 that is integrally secured to a ?ange 62 of a
Having now described the invention that which is
claimed to be new and desired to be procured by Letters
Patent is:
channel bar 64 and a ?ange 66 on the opposite side of the
In a window structure, the combination which com
prises a window frame having parting strips and blind
channel, bar is secured to a, brace 68, which isv also ' L
shaped, and ‘an arm. 70 of the brace 68 extends into a 30 stops therein, sash in the frame, undulating strips slid
, recess '72 in the side of the parting stripv 74. With the
ably mounted ‘between the parting strips and blind stops
and extended continuously’ throughout the height of the
arms 54 and 7!) extended into’ the. recesses 56 and 72, re
spectivelyaoutward movement of the undulating strips 24'
and 26 is limited and, at thersame time, the strips are
window structure, said undulating strips being integral
with channel bars, positioned intermediate of said undulat
free, to be, pressed inwardly compressing the springs 18
and 20 to,
the sash to pass from one undulation to
ing strips and said parting strips and blind stops, un
dulating supports positioned against said undulating
t The undulating. strip 24 is similar; to the strip 26, and
strips, springs behind said undulating strips for urging the
undulating strips. into sealing relation with the undulating
a the arm 76- of a brace 78, at the outer side extends into a
supports of the sash, the edges or" the parting strips and
recess 8,0. infthe inner side of the parting strip 74, and 40 blind stops having longitudinally disposedgroo-ves spaced
the arm 82 of'the ‘brace 84 at the inside of the undulating
strip 24 extends into a recess 86,.of the stop or inner bead
inwardly from the. edges thereof and ?anges on the chan
nel, bars that are integral with the undulating strips of
88. The stop 88 and parting stripr74 may be secured to a
jarnb 90 by screws 92, and, as shown in FIGURE 3, the '
the frame, and an L-shaped brace on each of said ?anges,
each of said L-shaped braces having an arm on the inner
end thereof, and said arms are extended'into the grooves
parting strip is mounted. in a recess 94 of the jarnb. The
jamb is alsov provided with a shoulder §6 against which
of the parting strips and blind stops for sealing said sash
the stop 88 is positioned,’ thereby limiting inward move
against said frame.
meut of the stop, to prevent binding in the parts, and a
bead .98 may be provided inside of the stop.
References Cited in the ?leof this, patent
The edges; of the sash are also provided with grooves. 50
1.00. that are positioned to receive the ?anges 760 of the
webs 46 of the undulating strips 24 and 26-, and 62 of the
channel bars to; further seal the spaces between the sash;
and frame.
>With» the window assembled as ‘illustrated and described
Schuler _____________ __'_ Oct. 23, 1934
Kurtz _____________ __'__ Nov. 24, 1942
Kinish ___________ _._,____, Dec. 2, 1952
Zitomer _____________ __ Mar; 10, 1953
Gottschalk ___________ __ June 30, 1953
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